ICOM-ICL7136维修手册

190951:Ray1:7941AXLow Power,3%Digit A/D ConverterGeneral DescriptionFeaturesThe Maxim ICL7136 is a monolithic analog to digital con-Improved Second Source!(see 3rd page forverter with very high input impedance.On-board active“Maxim AdvantageTM").components include segment drivers,segment decod-Power Dissipation Guaranteed Less than 1mWers,voltage reference and a clock circuit.The ICL7136directly drives a non-multiplexed liquid crystal (LCD)dis-9V Battery Life 3000 Hours Typicalplay,requiring no external display drive circuitry.Signifi-Guaranteed First Reading Recovery fromwcantly reduced power consumption makes the ICL7136 aOverrangesuperior device,especially for portable systems.Zero Input Gives Zero ReadingVersatility and accuracy are inherent features of this con-verter.The dual-slope conversion technique automatical-Drives LCD Displays Directlyly rejects interference signals common in industrial envi-Low Noise(15uVp-p)Without Hysteresis orronments.The true differential input and reference areOverrange Hangoverparticularly useful when making ratiometric measure-ments (ohms or bridge transducers),and the zero-inte-True Differential Reference and Inputgrator phase in Maxim's ICL7136 eliminates overrangeMonolithic,Low-Power CMOS Designhangover and hysteresis effects.Finally,this device of-fers high accuracy by lowering rollover error to less thanone count and zero reading drift to less than 1uV/C.Ordering InformationPARTTEMP.RANGEPIN-PACKAGECL7136CPL0℃10+70℃40 Plastic DIPApplicationsICL7136CJL0°Co+70℃40 CERDIPICL7136CMH0Cto+70°C44 Plastic凡atpackThese devices can be used in a wide range of digitalDC to +70C44 Plastic Chip Carrierpanel meter applications.Most applications,however,in-ICL7136CQHvolve the measurement and display of analog data:ICL7136C/D0℃1o+70°CDiceTypical Operating CircuitPressureConductanceVoltageCurrentResistanceSpeedT emperatureMaterial ThicknessPin Configurations他密Top ViewV*回四05c1D1四0SC210sc315回TESTREF HI雨REF LO82治H10sB2四IN LOA/ZBUFFFULL SCALEINPUTVREF四四2.000V130V100s2000m100.0mE3四100s10005-AB4回3POL西▣(MINUS SIGN)Pin Configurations continued on last page.(Detalled Circuit Diagram-Figures 1 2)The "Maxim Advantage""signifies an upgraded quality level.At no additional cost we offer a second-source device that is subject to thefollowing:guaranteed performanceer temperature along with tighter test specifications on many key parameters;and deviceenhancements,when needed.that result in improved performance without changing the functionality.MAXIMMaxim Integrated Products 1For free samples the latest literature:http://www.maxim-ic.com,or phone 1-800-998-8800